CN213014148U - Bank slope protective structure - Google Patents

Bank slope protective structure Download PDF

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Publication number
CN213014148U
CN213014148U CN202021006780.8U CN202021006780U CN213014148U CN 213014148 U CN213014148 U CN 213014148U CN 202021006780 U CN202021006780 U CN 202021006780U CN 213014148 U CN213014148 U CN 213014148U
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China
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layer
protection
concrete
bank slope
slope protection
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CN202021006780.8U
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Chinese (zh)
Inventor
丛旭娟
仝翠
冯乔乔
王萌薇
林认雪
岳丽婷
段玉玲
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China Railway Inter City Planning Construction Co ltd
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China Railway Inter City Planning Construction Co ltd
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Abstract

The utility model discloses a bank slope protection structure, which comprises a first bank slope protection surface, a second bank slope protection surface, a third bank slope protection surface and a concrete protection bottom surface which are arranged from top to bottom along the bank slope surface of a river channel in sequence; the first bank slope protection surface is sequentially provided with a first backfill soil layer, a first bentonite waterproof blanket layer and a first concrete layer from the upper surface to the bottom surface; the second slope protection surface is sequentially provided with a polyester non-woven fabric layer, a second backfill soil layer, a second bentonite waterproof blanket layer and a second concrete layer from the upper surface to the bottom surface; the polyester non-woven fabric layer is provided with a Golgi Reynolds protective cushion layer, and the slope ratio of the second slope protective surface is 1:5 or 1: 7.5; and the third slope protection surface is sequentially provided with a third backfill soil layer, a third bentonite waterproof blanket layer and a third concrete layer from the upper surface to the bottom surface. The utility model discloses can enough prevent effectively that the river from permeating the river course, stable in structure again is difficult for receiving the influence that the river erodeed.

Description

Bank slope protective structure
Technical Field
The utility model relates to a bank slope protective structure especially relates to a bank slope protective structure.
Background
The existing method for preventing the water and soil loss of the bank ramp is mainly to build a retaining wall by using stones or directly plant turf after arranging a protective net on the ramp so as to ensure the water and soil loss prevention, but has various problems, such as unstable structure, and easy occurrence of drop of the built retaining wall or scattering of the protective net along with the prolonging of the service time or earthquake; in rainy season, because it is down that heavy rain falls to wash, the planting turf is washed out by the rivers easily, and these all can cause the ramp to destroy, so need develop a stability height, the good river course bank slope protective structure of protecting effect.
Disclosure of Invention
The utility model aims at providing a stability is high, the river course bank slope protective structure that protecting effect is good.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model relates to a bank slope protection structure, a first bank slope protection surface, a second slope protection surface, a third slope protection surface and a concrete protection bottom surface are arranged on a bank slope surface along a river course from top to bottom in sequence;
the first bank slope protection surface is sequentially provided with a first backfill soil layer, a first bentonite waterproof blanket layer and a first concrete layer from the upper surface to the bottom surface; the slope ratio of the first bank slope protection surface is 1: 2;
the second slope protection surface is sequentially provided with a polyester non-woven fabric layer, a second backfill soil layer, a second bentonite waterproof blanket layer and a second concrete layer from the upper surface to the bottom surface; the polyester non-woven fabric layer is provided with a Golgi Reynolds cushion layer, the Golgi Reynolds cushion layer comprises a Golgi Reynolds cushion and stone or pebbles filled in the Golgi Reynolds cushion, the filling porosity is not more than 30%, and the grain diameters of the stone and the pebbles are both 70-150 mm;
the slope ratio of the second slope protection surface is 1:5 or 1: 7.5;
and the third slope protection surface is sequentially provided with a third backfill soil layer, a third bentonite waterproof blanket layer and a third concrete layer from the upper surface to the bottom surface.
Further, the first bank slope protection surface is further connected with a concrete protection surface, and the concrete protection surface and the first bank slope protection surface are arranged from top to bottom along the river course bank slope surface.
Further, the slope ratio of the first bank slope protection surface is 1: 10.
Further, the slope ratio of the third slope protection surface is 1: 10.
Further, the slope ratio of the concrete bottom protecting surface is 1: 15.
furthermore, the designed normal water level of the river bank slope is positioned on the second slope protection surface, and Golgi Reynolds protection cushion layers are respectively arranged in the range of 0.6m above and below the designed normal water level.
Furthermore, an expansion joint is arranged in the first concrete layer, the second concrete layer, the third concrete layer and the concrete bottom protection surface at an interval of 5 m.
Furthermore, one or more blind ditches are respectively arranged in the third concrete layer and the concrete bottom protecting surface.
Compared with the prior art, the utility model discloses the beneficial effect who gains as follows:
the utility model discloses can be used in river course bank slope, the utility model discloses along the domatic setting of river course bank slope, concrete protection face plays location and fixed effect. The second slope protection surface plays a main waterproof role, and through the arrangement of the polyester non-woven fabric layer, the second backfill soil layer, the second bentonite waterproof blanket layer and the second concrete layer, river water can be effectively prevented from permeating into the river course bank slope, and water and soil loss is prevented. The first bank slope protection surface and the third bank slope protection surface play a role in supporting and seepage prevention, and the concrete bottom protection surface plays a role in foundation.
The utility model discloses can prevent effectively promptly that the river from permeating the river course, stable in structure is difficult for receiving the influence that the river erodeed again.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
In the drawings: 1 concrete protective surface, 2 first bank slope protective surface, 2-1 first backfill soil layer, 2-2 first bentonite waterproof blanket layer, 2-3 first concrete layer, 3 second slope protective surface, 3-1 Golgi Reynolds protective cushion layer, 3-2 polyester non-woven fabric layer, 3-3 second backfill soil layer, 3-4 second bentonite waterproof blanket layer, 3-5 second concrete layer, 4 third slope protective surface, 4-1 third backfill soil layer, 4-2 third bentonite waterproof blanket layer, 4-3 third concrete layer, 5 concrete protective bottom surface and 6 blind ditch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the embodiment provides a bank slope protection structure, which includes a first bank slope protection surface 2, a second bank slope protection surface 3, a third bank slope protection surface 4 and a concrete bottom protection surface 5 sequentially arranged from top to bottom along a bank slope surface of a river channel; the first bank slope protection surface 2, the second slope protection surface 3, the third slope protection surface 4 and the concrete protection bottom surface 5 are sequentially connected end to end. The concrete bottom protection surface 5 is a C25 concrete bottom protection surface, the concrete frost resistance grade is F50, and the impermeability grade is W4.
The first bank slope protection surface 2 is sequentially provided with a first backfill soil layer 2-1, a first bentonite waterproof blanket layer 2-2 and a first concrete layer 2-3 from the upper surface to the bottom surface; the slope ratio of the first bank slope protection surface 2 is 1: 2;
the second slope protection surface 3 is sequentially provided with a polyester non-woven fabric layer 3-2, a second backfill soil layer 3-3, a second bentonite waterproof blanket layer 3-4 and a second concrete layer 3-5 from the upper surface to the bottom surface; the polyester non-woven fabric layer 3-2 is provided with a Golgin Reynolds cushion layer 3-1, the Golgin Reynolds cushion layer 3-1 comprises a Golgin Reynolds cushion and block stones or pebbles filled in the Golgin Reynolds cushion, the filling porosity is not more than 30%, and the particle sizes of the block stones and the pebbles are both 70-150 mm; the rock blocks and pebbles are hard rocks with the strength grade not less than MU30, are not easy to hydrolyze and resist weathering.
The polyester non-woven fabric layer 3-2 is formed by polyester non-woven fabrics, in particular to polyester long fiber non-woven fabrics for reverse filtration.
The slope ratio of the second slope protection surface 3 is 1:5 or 1: 7.5;
the third slope protection surface 4 is sequentially provided with a third backfill soil layer 4-1, a third bentonite waterproof blanket layer 4-2 and a third concrete layer 4-3 from the upper surface to the bottom surface.
The first bank slope protection surface 2 is further connected with a concrete protection surface 1, and the concrete protection surface 1 and the first bank slope protection surface 2 are arranged from top to bottom along the river course bank slope surface. The concrete protection surface 1 plays a role in connection and fixation.
The slope ratio of the first bank slope protection surface 2 is 1: 10.
The slope ratio of the third slope protection surface 4 is 1: 10.
The slope ratio of the concrete bottom protecting surface 5 is 1: 15.
the designed normal water level of the river channel bank slope is positioned on the second slope protection surface 3, and Golgi Reynolds protection cushion layers 3-1 are arranged in the ranges of 0.6m above and below the designed normal water level respectively. The golvan reynolds cushion layer 3-1 is arranged in a water level variation region which is in the range of 0.6m above and below the designed normal water level, in the embodiment, the designed normal water level is 66.6m, and the horizontal dotted line in the figure is the position of the normal water level. The Golgi Reynolds protection pad layer 3-1 is a galvanized Golgi Reynolds protection pad with the thickness of 0.23m,
the installation requirements of the Golgi Reynolds cushion layer 3-1 are as follows: and placing the folded check net on a plain and solid ground, unfolding, and flattening redundant creases. The front and rear panels, the bottom plate and the partition plate are erected to a certain position and are in a box shape. The upper and lower four corners of adjacent net box groups are connected by a double-strand combined wire; and binding the upper and lower frame wires or the fold lines, and winding and tightening the upper and lower frame wires or the fold lines by using a spiral fixing wire. The uneven part of the edge protrusion needs to be folded and flattened. The six surfaces and the partition of each net cage are integrally formed to ensure that each net surface is smooth and then is placed at a fixed position.
The edge of the Reynolds protection pad is connected with other parts by binding wires or metal binding rings. The maximum distance is 100mm during binding. Sufficient binding wire is wound along the border wire, optionally in single or double strands.
After each Reynolds protection pad is installed, the Reynolds protection pads are placed at the appointed positions, and then the net pads are connected. To maintain the overall structure and facilitate connection, the empty boxes may be connected and then filled.
And expansion joints are arranged in the first concrete layer 2-3, the second concrete layer 3-5, the third concrete layer 4-3 and the concrete bottom protecting surface 5 at intervals of 5m respectively.
The utility model discloses in, waterproof blanket layer 2-2 of first bentonite, the waterproof blanket layer 3-4 of second bentonite and the waterproof blanket layer 4-2 of third bentonite constitute by the waterproof blanket of bentonite, the bentonite that the waterproof blanket of bentonite used is natural sodium bentonite, and the particle diameter is at the bentonite granule of 0.2mm ~ 2mm within range, and its quality accounts for 80% of the total quality of bentonite at least. The geotextiles at two sides of the bentonite waterproof blanket (GCL) are respectively non-woven fabrics and woven fabrics, and the non-woven fabrics correspond to the upstream surface when being laid, namely the non-woven fabrics face upwards.
The first backfill soil layer 2-1, the second backfill soil layer 3-3 and the third backfill soil layer 4-1 are all backfilled by layering rolling of viscous sandy loam, the compaction degree reaches over 0.9, and the backfilling thickness is 0.5 m.
The backfill soil in the first backfill soil layer 2-1, the second backfill soil layer 3-3 and the third backfill soil layer 4-1 adopts sand or screened soil, and impurities such as stones with the particle size of more than 10mm cannot be contained. The backfill soil must be tamped (or compacted, vibrated, etc.), the compactness of the backfill soil is not less than 0.9, and the thickness after tamping is not less than 500 mm.
The first concrete layer 2-3, the second concrete layer 3-5, the third concrete layer 4-3 and the concrete bottom protecting surface 5 are concrete pouring layers, the frost resistance grade of the concrete is F50, and the impermeability grade is W4.
The utility model discloses can be used in river course, reservoir, lake area, be used on river course bank slope like this embodiment, the utility model discloses along the domatic setting of river course bank slope, concrete protection face 1 plays location and fixed effect. The second slope protection surface 3 plays a main waterproof role, and river water can be effectively prevented from permeating into the river channel bank slope and water and soil loss through the arrangement of the polyester non-woven fabric layer 3-2, the second backfill soil layer 3-3, the second bentonite waterproof blanket layer 3-4 and the second concrete layer 3-5. The first bank slope protection surface 2 and the third bank slope protection surface 4 play a role in supporting and seepage prevention, and the concrete bottom protection surface 5 plays a role in foundation.
The utility model discloses can prevent effectively promptly that the river from permeating the river course, stable in structure is difficult for receiving the influence that the river erodeed again.
Example 2
The difference between this embodiment and embodiment 1 is that in this embodiment, one or more blind ditches 6 are respectively arranged in the third concrete layer 4-3 and the concrete bottom protecting surface 5. In this embodiment, two blind ditches 6 are respectively arranged in the third concrete layer 4-3 and the concrete bottom protecting surface 5, and the blind ditches 6 are transversely arranged in the third concrete layer 4-3 and the concrete bottom protecting surface 5, so as to prevent the water level from suddenly dropping to cause overlarge water pressure of the bank slope, referring to fig. 2.
The above-described embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims (7)

1. The utility model provides a bank slope protective structure which characterized in that: a first bank slope protection surface (2), a second bank slope protection surface (3), a third bank slope protection surface (4) and a concrete protection bottom surface (5) are sequentially arranged from top to bottom along the bank slope surface of the river channel;
the first bank slope protection surface (2) is sequentially provided with a first backfill soil layer (2-1), a first bentonite waterproof blanket layer (2-2) and a first concrete layer (2-3) from the upper surface to the bottom surface; the slope ratio of the first bank slope protection surface (2) is 1: 2;
the second slope protection surface (3) is sequentially provided with a polyester non-woven fabric layer (3-2), a second backfill soil layer (3-3), a second bentonite waterproof blanket layer (3-4) and a second concrete layer (3-5) from the upper surface to the bottom surface; the polyester non-woven fabric layer (3-2) is provided with a Golgin Reynolds cushion protection layer (3-1), the Golgin Reynolds cushion protection layer (3-1) comprises a Golgin Reynolds cushion protection pad and stones or pebbles filled in the Golgin Reynolds cushion protection pad, the filling void ratio is not more than 30%, and the grain sizes of the stones and the pebbles are both 70 mm-150 mm;
the slope ratio of the second slope protection surface (3) is 1:5 or 1: 7.5;
and the third slope protection surface (4) is sequentially provided with a third backfill soil layer (4-1), a third bentonite waterproof blanket layer (4-2) and a third concrete layer (4-3) from the upper surface to the bottom surface.
2. A bank slope protection structure according to claim 1, wherein: the first bank slope protection surface (2) is further connected with a concrete protection surface (1), and the concrete protection surface (1) and the first bank slope protection surface (2) are arranged from top to bottom along the river course bank slope surface.
3. A bank slope protection structure according to claim 1, wherein: the slope ratio of the third slope protection surface (4) is 1: 10.
4. A bank slope protection structure according to claim 1, wherein: the slope ratio of the concrete bottom protecting surface (5) is 1: 15.
5. a bank slope protection structure according to claim 1, wherein: the designed normal water level of the river channel bank slope is positioned on the second slope protection surface (3), and Golgi Reynolds protection cushion layers (3-1) are arranged in the ranges of 0.6m above and below the designed normal water level respectively.
6. A bank slope protection structure according to claim 1, wherein: and expansion joints are arranged in the first concrete layer (2-3), the second concrete layer (3-5), the third concrete layer (4-3) and the concrete bottom protecting surface (5) at intervals of 5m respectively.
7. A bank slope protection structure according to claim 1, wherein: more than one blind ditch (6) is respectively arranged in the third concrete layer (4-3) and the concrete bottom protecting surface (5).
CN202021006780.8U 2020-06-04 2020-06-04 Bank slope protective structure Active CN213014148U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021006780.8U CN213014148U (en) 2020-06-04 2020-06-04 Bank slope protective structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021006780.8U CN213014148U (en) 2020-06-04 2020-06-04 Bank slope protective structure

Publications (1)

Publication Number Publication Date
CN213014148U true CN213014148U (en) 2021-04-20

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ID=75493545

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021006780.8U Active CN213014148U (en) 2020-06-04 2020-06-04 Bank slope protective structure

Country Status (1)

Country Link
CN (1) CN213014148U (en)

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